Professor of Management, Sloan School of Management, and Co-Director of the Joint Program on the Science and Policy of Global Change; former Director of the CEEPR, Associate Director of the Energy Laboratory, and Chair of the MIT Faculty. Former director of the Harvard Environmental Systems Program. Professor Jacoby has made contributions to the study of policy and planning in the areas of energy, natural resources, and the environment. He was a member of the National Petroleum Council, the Climatic Impact Committee of the National Academy of Sciences and the American Association for the Advancement of Science Panel on Climate Change and Water Resources. He was also a member of the National Academies Committee on Alternative Energy R&D Strategies, and he currently serves on its Committee on Metrics for Global Change Research. His current research is focused on economic analysis of climate change and greenhouse gas mitigation, and the integration of this work with the natural science of the issue.